Inno Setup - Inno Setup is a free installer for Windows programs.

inFlow Inventory - inFlow Inventory is inventory management software for small businesses.

Advanced Installer - Advanced Installer is a Windows installer authoring tool for installing, updating, and configuring your products safely, securely, and reliably.

Snipe-IT - Managing assets with a Google doc or a shared Excel spreadsheet is more common than you think.

Debreate - Debreate is a utility to aid in building Debian packages (.deb).

Skyware Inventory - Web-based Inventory Management.